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11-12-2015, 02:49 PM
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#1
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Junior Member
Join Date: Oct 2015
Location: Bellingham
Posts: 15
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Grey Tank woes...
Hello all, I have a 2015 Jayco Jayflight and the grey tank meter reads 2/3rds all of the time. I have heard of the black tank meter getting fouled but the grey? Anyone got a solution other than warranty work?
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11-12-2015, 02:54 PM
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#2
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Senior Member
Join Date: Jan 2015
Location: Kelowna, BC Canada
Posts: 213
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Try filling and adding Thetford Level Gauge clear. I have used it before. Also could try putting a bunch of warm water in there and take her for a drive as well. I think I would try both at same time. 10 or so minutes with mixture sloshing around should do the trick.
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Andersen Hitch.
'07 Northern Lite 10-2RR Camper.
SuperSprings.
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11-12-2015, 02:54 PM
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#3
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Senior Member
Join Date: May 2015
Location: Campbell Hall
Posts: 2,835
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Have you flushed and filled a time or two with clear water, yet?
Then crawl underneath and see if all 4 wires are connected and there is no mud, leaves, nests, etc. touching the outside ends of the probes..
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TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!
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11-12-2015, 02:54 PM
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#4
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Senior Member
Join Date: Aug 2015
Location: Cumming, Georgia
Posts: 144
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Fill it up and let it sit a while to loosen the "debris". There are some chemicals I'm sure you can add as well. Someone will know better than me thought.
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2015 Jayco Eagle Premier 318RETS
2008 Ford F-250 Lariat CC Super Duty 6.4 Turbo Diesel
Cumming, Georgia
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11-12-2015, 02:57 PM
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#5
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Junior Member
Join Date: Oct 2015
Location: Bellingham
Posts: 15
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The underside is sealed. Where are these four wires you speak of? Yes to the first question. It seems to have stuck after the very first fill up. It was very full though.
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11-12-2015, 03:33 PM
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#6
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Senior Member
Join Date: May 2015
Location: Campbell Hall
Posts: 2,835
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Quote:
Originally Posted by tloynd
The underside is sealed. Where are these four wires you speak of? Yes to the first question. It seems to have stuck after the very first fill up. It was very full though.
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There are 4 probes into the tank. Bottom (common), 1/4, 1/2 and 3/4. [Wait, there may be a 5th at full]. Each probe sends a very small signal (conductivity of the grey water) back to the control box.
With the enclosed bottom, you won't be able to service the wires without dropping the plastic.
With the tank empty, you may be getting a reading from just the damp walls. Once 2 probes are under water, you may start getting accurate readings.
Have you checked the readings as the tank is being filled for flushing?
__________________
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!
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11-12-2015, 03:53 PM
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#7
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Junior Member
Join Date: Oct 2015
Location: Bellingham
Posts: 15
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Yes, they never change. The tank whether full or empty always reads 2/3rds...weird.
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11-12-2015, 03:57 PM
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#8
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Senior Member
Join Date: Jan 2015
Location: columbus
Posts: 166
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question when you wash dishes do you put grease in the sink, or wipe it out before you put it in. tank sensors are notorious for false readings, grease, food particules, etc will give false readings, flush tank with soapy water several times and problem will probably be resolved.
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11-12-2015, 04:05 PM
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#9
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 9,769
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My gray tank started doing the same this summer. I added a few gallons of water to the empty tank with a ½ cup of liquid fabric softener. After a few trips sloshing around the gray tank gauge changed its readings. I suspect it is grease on the gauges.
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11-12-2015, 05:10 PM
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#10
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Senior Member
Join Date: May 2015
Location: Charles Town
Posts: 470
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My gray tank and black tank gauges are never accurate. I use Calgon water softener and dawn dish soap to keep them clean and it makes no difference, every day seems to be a different reading.
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2014 Toyota TundraTRD double cab 4x4 tow package off road package 46 gallon fuel tank
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11-12-2015, 06:17 PM
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#11
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Junior Member
Join Date: Oct 2015
Location: Bellingham
Posts: 15
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I am sorry to hear that but atleast I can rest easy knowing that I probably am not doing anything wrong. LOL Thanks for the reply!
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11-12-2015, 08:16 PM
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#12
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Senior Member
Join Date: Nov 2014
Location: Florien, LA
Posts: 1,872
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RV Digestit. Google it or check your local RV place. Follow the directions on the bottle. Cleans EVERYTHING. Black tank, gray tank etc. I've only used it as a tank chemical, but we used it on a friend of mines where his gauges weren't working at all. There was crap that came out of that tank from probably 2 years before. It eats and breaks loose everything. All his gauges worked after that.
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John and Rebecca Dickson
Emma-13 / Little John-10 / Iva-7
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)
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11-12-2015, 10:41 PM
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#13
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Member
Join Date: Mar 2013
Location: Overgaard
Posts: 44
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I got a really good tip on treating both the grey and black tanks and has worked remarkably. Fill both tanks with water all the way up. Then add Murphy's oil soap and let them sit for at least 4 hours. I let mine set for a couple of days. Flush both 2 times. If you still have a bad reading when their empty repeat the process. 1 cup of the soap will be plenty for each tank. Nothing will cling to the walls or sensors after that. I used hot water on the first run to soak into the remnants of anything in the tanks. Once a season do this and nothing will stick to the inside of the tank.
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Jayco 2015 27DSRL Summit/Glacier
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11-13-2015, 10:13 AM
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#14
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Senior Member
Join Date: Dec 2012
Location: NW AR (God's Country)
Posts: 2,051
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Quote:
Originally Posted by Racinforthefinish
My gray tank and black tank gauges are never accurate. I use Calgon water softener and dawn dish soap to keep them clean and it makes no difference, every day seems to be a different reading.
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Same here. I pretty much ignore the black and gray water gauges.
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